Dataset statistics
| Number of variables | 15 |
|---|---|
| Number of observations | 4872 |
| Missing cells | 0 |
| Missing cells (%) | 0.0% |
| Duplicate rows | 0 |
| Duplicate rows (%) | 0.0% |
| Total size in memory | 571.1 KiB |
| Average record size in memory | 120.0 B |
Variable types
| NUM | 13 |
|---|---|
| CAT | 2 |
citric_acid has 117 (2.4%) zeros | Zeros |
Reproduction
| Analysis started | 2020-11-21 16:50:49.402039 |
|---|---|
| Analysis finished | 2020-11-21 16:52:25.962095 |
| Duration | 1 minute and 36.56 seconds |
| Software version | pandas-profiling v2.9.0 |
| Download configuration | config.yaml |
df_index
Real number (ℝ≥0)
| Distinct | 3974 |
|---|---|
| Distinct (%) | 81.6% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 2041.144089 |
|---|---|
| Minimum | 0 |
| Maximum | 4897 |
| Zeros | 2 |
| Zeros (%) | < 0.1% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0 |
|---|---|
| 5-th percentile | 152.1 |
| Q1 | 807 |
| median | 1652.5 |
| Q3 | 3283.25 |
| 95-th percentile | 4575.45 |
| Maximum | 4897 |
| Range | 4897 |
| Interquartile range (IQR) | 2476.25 |
Descriptive statistics
| Standard deviation | 1441.655691 |
|---|---|
| Coefficient of variation (CV) | 0.7062978546 |
| Kurtosis | -1.117858499 |
| Mean | 2041.144089 |
| Median Absolute Deviation (MAD) | 1101.5 |
| Skewness | 0.4119395107 |
| Sum | 9944454 |
| Variance | 2078371.131 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 6 | 2 | < 0.1% | |
| 262 | 2 | < 0.1% | |
| 286 | 2 | < 0.1% | |
| 294 | 2 | < 0.1% | |
| 302 | 2 | < 0.1% | |
| 306 | 2 | < 0.1% | |
| 310 | 2 | < 0.1% | |
| 318 | 2 | < 0.1% | |
| 330 | 2 | < 0.1% | |
| 338 | 2 | < 0.1% | |
| Other values (3964) | 4852 | 99.6% |
| Value | Count | Frequency (%) | |
| 0 | 2 | < 0.1% | |
| 1 | 2 | < 0.1% | |
| 2 | 1 | < 0.1% | |
| 3 | 2 | < 0.1% | |
| 4 | 1 | < 0.1% |
| Value | Count | Frequency (%) | |
| 4897 | 1 | < 0.1% | |
| 4896 | 1 | < 0.1% | |
| 4895 | 1 | < 0.1% | |
| 4894 | 1 | < 0.1% | |
| 4893 | 1 | < 0.1% |
fixed_acidity
Real number (ℝ≥0)
| Distinct | 105 |
|---|---|
| Distinct (%) | 2.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 7.234308292 |
|---|---|
| Minimum | 3.8 |
| Maximum | 15.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 3.8 |
|---|---|
| 5-th percentile | 5.7 |
| Q1 | 6.4 |
| median | 7 |
| Q3 | 7.7 |
| 95-th percentile | 9.9 |
| Maximum | 15.9 |
| Range | 12.1 |
| Interquartile range (IQR) | 1.3 |
Descriptive statistics
| Standard deviation | 1.324478017 |
|---|---|
| Coefficient of variation (CV) | 0.1830828828 |
| Kurtosis | 5.01084937 |
| Mean | 7.234308292 |
| Median Absolute Deviation (MAD) | 0.6 |
| Skewness | 1.744912248 |
| Sum | 35245.55 |
| Variance | 1.754242018 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 6.8 | 268 | 5.5% | |
| 6.6 | 241 | 4.9% | |
| 6.4 | 227 | 4.7% | |
| 6.9 | 216 | 4.4% | |
| 7.2 | 205 | 4.2% | |
| 6.7 | 193 | 4.0% | |
| 7.1 | 192 | 3.9% | |
| 7 | 188 | 3.9% | |
| 6.5 | 179 | 3.7% | |
| 7.3 | 176 | 3.6% | |
| Other values (95) | 2787 | 57.2% |
| Value | Count | Frequency (%) | |
| 3.8 | 1 | < 0.1% | |
| 4.2 | 2 | < 0.1% | |
| 4.4 | 2 | < 0.1% | |
| 4.5 | 1 | < 0.1% | |
| 4.6 | 2 | < 0.1% |
| Value | Count | Frequency (%) | |
| 15.9 | 1 | < 0.1% | |
| 15.6 | 1 | < 0.1% | |
| 15.5 | 2 | < 0.1% | |
| 15 | 1 | < 0.1% | |
| 14.3 | 1 | < 0.1% |
volatile_acidity
Real number (ℝ≥0)
| Distinct | 185 |
|---|---|
| Distinct (%) | 3.8% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3435724548 |
|---|---|
| Minimum | 0.08 |
| Maximum | 1.58 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0.08 |
|---|---|
| 5-th percentile | 0.16 |
| Q1 | 0.23 |
| median | 0.3 |
| Q3 | 0.41 |
| 95-th percentile | 0.68 |
| Maximum | 1.58 |
| Range | 1.5 |
| Interquartile range (IQR) | 0.18 |
Descriptive statistics
| Standard deviation | 0.1669408145 |
|---|---|
| Coefficient of variation (CV) | 0.4858969693 |
| Kurtosis | 3.024510996 |
| Mean | 0.3435724548 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.531190873 |
| Sum | 1673.885 |
| Variance | 0.02786923556 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.24 | 203 | 4.2% | |
| 0.28 | 198 | 4.1% | |
| 0.26 | 198 | 4.1% | |
| 0.25 | 190 | 3.9% | |
| 0.22 | 179 | 3.7% | |
| 0.23 | 167 | 3.4% | |
| 0.27 | 162 | 3.3% | |
| 0.3 | 162 | 3.3% | |
| 0.2 | 160 | 3.3% | |
| 0.32 | 153 | 3.1% | |
| Other values (175) | 3100 | 63.6% |
| Value | Count | Frequency (%) | |
| 0.08 | 1 | < 0.1% | |
| 0.085 | 1 | < 0.1% | |
| 0.09 | 1 | < 0.1% | |
| 0.1 | 4 | 0.1% | |
| 0.105 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 1.58 | 1 | < 0.1% | |
| 1.33 | 2 | < 0.1% | |
| 1.24 | 1 | < 0.1% | |
| 1.18 | 1 | < 0.1% | |
| 1.13 | 1 | < 0.1% |
| Distinct | 89 |
|---|---|
| Distinct (%) | 1.8% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3189634647 |
|---|---|
| Minimum | 0 |
| Maximum | 1.66 |
| Zeros | 117 |
| Zeros (%) | 2.4% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0 |
|---|---|
| 5-th percentile | 0.05 |
| Q1 | 0.25 |
| median | 0.31 |
| Q3 | 0.39 |
| 95-th percentile | 0.5645 |
| Maximum | 1.66 |
| Range | 1.66 |
| Interquartile range (IQR) | 0.14 |
Descriptive statistics
| Standard deviation | 0.1459710514 |
|---|---|
| Coefficient of variation (CV) | 0.4576419167 |
| Kurtosis | 2.720463079 |
| Mean | 0.3189634647 |
| Median Absolute Deviation (MAD) | 0.07 |
| Skewness | 0.5174778139 |
| Sum | 1553.99 |
| Variance | 0.02130754783 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.3 | 257 | 5.3% | |
| 0.28 | 231 | 4.7% | |
| 0.26 | 202 | 4.1% | |
| 0.32 | 202 | 4.1% | |
| 0.49 | 198 | 4.1% | |
| 0.34 | 188 | 3.9% | |
| 0.29 | 184 | 3.8% | |
| 0.31 | 173 | 3.6% | |
| 0.27 | 168 | 3.4% | |
| 0.24 | 167 | 3.4% | |
| Other values (79) | 2902 | 59.6% |
| Value | Count | Frequency (%) | |
| 0 | 117 | 2.4% | |
| 0.01 | 26 | 0.5% | |
| 0.02 | 39 | 0.8% | |
| 0.03 | 24 | 0.5% | |
| 0.04 | 31 | 0.6% |
| Value | Count | Frequency (%) | |
| 1.66 | 1 | < 0.1% | |
| 1.23 | 1 | < 0.1% | |
| 1 | 4 | 0.1% | |
| 0.99 | 1 | < 0.1% | |
| 0.91 | 2 | < 0.1% |
residual_sugar
Real number (ℝ≥0)
| Distinct | 299 |
|---|---|
| Distinct (%) | 6.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.442692939 |
|---|---|
| Minimum | 0.6 |
| Maximum | 65.8 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0.6 |
|---|---|
| 5-th percentile | 1.2 |
| Q1 | 1.8 |
| median | 3.05 |
| Q3 | 8.1 |
| 95-th percentile | 15 |
| Maximum | 65.8 |
| Range | 65.2 |
| Interquartile range (IQR) | 6.3 |
Descriptive statistics
| Standard deviation | 4.747205898 |
|---|---|
| Coefficient of variation (CV) | 0.8722163736 |
| Kurtosis | 5.758810471 |
| Mean | 5.442692939 |
| Median Absolute Deviation (MAD) | 1.75 |
| Skewness | 1.534818269 |
| Sum | 26516.8 |
| Variance | 22.53596384 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 2 | 172 | 3.5% | |
| 1.4 | 164 | 3.4% | |
| 1.8 | 158 | 3.2% | |
| 1.6 | 158 | 3.2% | |
| 1.2 | 151 | 3.1% | |
| 2.1 | 141 | 2.9% | |
| 2.2 | 138 | 2.8% | |
| 1.9 | 134 | 2.8% | |
| 1.5 | 131 | 2.7% | |
| 2.3 | 127 | 2.6% | |
| Other values (289) | 3398 | 69.7% |
| Value | Count | Frequency (%) | |
| 0.6 | 2 | < 0.1% | |
| 0.7 | 6 | 0.1% | |
| 0.8 | 17 | 0.3% | |
| 0.9 | 28 | 0.6% | |
| 0.95 | 2 | < 0.1% |
| Value | Count | Frequency (%) | |
| 65.8 | 1 | < 0.1% | |
| 31.6 | 2 | < 0.1% | |
| 26.05 | 1 | < 0.1% | |
| 23.5 | 1 | < 0.1% | |
| 22.6 | 1 | < 0.1% |
chlorides
Real number (ℝ≥0)
| Distinct | 197 |
|---|---|
| Distinct (%) | 4.0% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.0561430624 |
|---|---|
| Minimum | 0.009 |
| Maximum | 0.611 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0.009 |
|---|---|
| 5-th percentile | 0.028 |
| Q1 | 0.038 |
| median | 0.047 |
| Q3 | 0.066 |
| 95-th percentile | 0.1 |
| Maximum | 0.611 |
| Range | 0.602 |
| Interquartile range (IQR) | 0.028 |
Descriptive statistics
| Standard deviation | 0.03523188657 |
|---|---|
| Coefficient of variation (CV) | 0.6275376702 |
| Kurtosis | 53.05130162 |
| Mean | 0.0561430624 |
| Median Absolute Deviation (MAD) | 0.011 |
| Skewness | 5.487260087 |
| Sum | 273.529 |
| Variance | 0.001241285832 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.036 | 162 | 3.3% | |
| 0.044 | 147 | 3.0% | |
| 0.042 | 142 | 2.9% | |
| 0.046 | 141 | 2.9% | |
| 0.047 | 136 | 2.8% | |
| 0.05 | 134 | 2.8% | |
| 0.048 | 134 | 2.8% | |
| 0.04 | 130 | 2.7% | |
| 0.034 | 126 | 2.6% | |
| 0.045 | 126 | 2.6% | |
| Other values (187) | 3494 | 71.7% |
| Value | Count | Frequency (%) | |
| 0.009 | 1 | < 0.1% | |
| 0.012 | 3 | 0.1% | |
| 0.013 | 1 | < 0.1% | |
| 0.014 | 4 | 0.1% | |
| 0.015 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 0.611 | 1 | < 0.1% | |
| 0.61 | 1 | < 0.1% | |
| 0.464 | 1 | < 0.1% | |
| 0.422 | 1 | < 0.1% | |
| 0.415 | 1 | < 0.1% |
free_sulfur_dioxide
Real number (ℝ≥0)
| Distinct | 132 |
|---|---|
| Distinct (%) | 2.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 30.61514778 |
|---|---|
| Minimum | 1 |
| Maximum | 289 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 1 |
|---|---|
| 5-th percentile | 6 |
| Q1 | 17 |
| median | 29 |
| Q3 | 41 |
| 95-th percentile | 61 |
| Maximum | 289 |
| Range | 288 |
| Interquartile range (IQR) | 24 |
Descriptive statistics
| Standard deviation | 17.96642208 |
|---|---|
| Coefficient of variation (CV) | 0.5868474719 |
| Kurtosis | 9.92286932 |
| Mean | 30.61514778 |
| Median Absolute Deviation (MAD) | 12 |
| Skewness | 1.38036536 |
| Sum | 149157 |
| Variance | 322.7923223 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 29 | 137 | 2.8% | |
| 6 | 130 | 2.7% | |
| 26 | 120 | 2.5% | |
| 15 | 117 | 2.4% | |
| 31 | 116 | 2.4% | |
| 17 | 115 | 2.4% | |
| 34 | 115 | 2.4% | |
| 24 | 114 | 2.3% | |
| 35 | 113 | 2.3% | |
| 21 | 108 | 2.2% | |
| Other values (122) | 3687 | 75.7% |
| Value | Count | Frequency (%) | |
| 1 | 1 | < 0.1% | |
| 2 | 1 | < 0.1% | |
| 3 | 48 | 1.0% | |
| 4 | 41 | 0.8% | |
| 5 | 103 | 2.1% |
| Value | Count | Frequency (%) | |
| 289 | 1 | < 0.1% | |
| 146.5 | 1 | < 0.1% | |
| 138.5 | 1 | < 0.1% | |
| 131 | 1 | < 0.1% | |
| 128 | 1 | < 0.1% |
total_sulfur_dioxide
Real number (ℝ≥0)
| Distinct | 272 |
|---|---|
| Distinct (%) | 5.6% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 116.0587028 |
|---|---|
| Minimum | 6 |
| Maximum | 440 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 6 |
|---|---|
| 5-th percentile | 19 |
| Q1 | 78 |
| median | 118 |
| Q3 | 156 |
| 95-th percentile | 206 |
| Maximum | 440 |
| Range | 434 |
| Interquartile range (IQR) | 78 |
Descriptive statistics
| Standard deviation | 56.9460764 |
|---|---|
| Coefficient of variation (CV) | 0.4906661459 |
| Kurtosis | -0.3094440636 |
| Mean | 116.0587028 |
| Median Absolute Deviation (MAD) | 39 |
| Skewness | 0.01981624191 |
| Sum | 565438 |
| Variance | 3242.855617 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 111 | 54 | 1.1% | |
| 113 | 50 | 1.0% | |
| 118 | 44 | 0.9% | |
| 110 | 44 | 0.9% | |
| 128 | 43 | 0.9% | |
| 98 | 43 | 0.9% | |
| 132 | 42 | 0.9% | |
| 122 | 41 | 0.8% | |
| 133 | 40 | 0.8% | |
| 131 | 40 | 0.8% | |
| Other values (262) | 4431 | 90.9% |
| Value | Count | Frequency (%) | |
| 6 | 2 | < 0.1% | |
| 7 | 2 | < 0.1% | |
| 8 | 10 | 0.2% | |
| 9 | 14 | 0.3% | |
| 10 | 24 | 0.5% |
| Value | Count | Frequency (%) | |
| 440 | 1 | < 0.1% | |
| 366.5 | 1 | < 0.1% | |
| 344 | 1 | < 0.1% | |
| 313 | 1 | < 0.1% | |
| 307.5 | 1 | < 0.1% |
density
Real number (ℝ≥0)
| Distinct | 935 |
|---|---|
| Distinct (%) | 19.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.9947374312 |
|---|---|
| Minimum | 0.98711 |
| Maximum | 1.03898 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0.98711 |
|---|---|
| 5-th percentile | 0.9899255 |
| Q1 | 0.9924 |
| median | 0.99497 |
| Q3 | 0.997 |
| 95-th percentile | 0.9994 |
| Maximum | 1.03898 |
| Range | 0.05187 |
| Interquartile range (IQR) | 0.0046 |
Descriptive statistics
| Standard deviation | 0.003031426585 |
|---|---|
| Coefficient of variation (CV) | 0.003047464074 |
| Kurtosis | 8.614202103 |
| Mean | 0.9947374312 |
| Median Absolute Deviation (MAD) | 0.00227 |
| Skewness | 0.6344798903 |
| Sum | 4846.360765 |
| Variance | 9.189547142e-06 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.9976 | 54 | 1.1% | |
| 0.9962 | 48 | 1.0% | |
| 0.998 | 48 | 1.0% | |
| 0.992 | 47 | 1.0% | |
| 0.9958 | 47 | 1.0% | |
| 0.9972 | 47 | 1.0% | |
| 0.9966 | 46 | 0.9% | |
| 0.9986 | 46 | 0.9% | |
| 0.9968 | 46 | 0.9% | |
| 0.9928 | 45 | 0.9% | |
| Other values (925) | 4398 | 90.3% |
| Value | Count | Frequency (%) | |
| 0.98711 | 1 | < 0.1% | |
| 0.98713 | 1 | < 0.1% | |
| 0.9874 | 1 | < 0.1% | |
| 0.98742 | 2 | < 0.1% | |
| 0.98746 | 1 | < 0.1% |
| Value | Count | Frequency (%) | |
| 1.03898 | 1 | < 0.1% | |
| 1.0103 | 2 | < 0.1% | |
| 1.00369 | 2 | < 0.1% | |
| 1.0032 | 1 | < 0.1% | |
| 1.00315 | 2 | < 0.1% |
pH
Real number (ℝ≥0)
| Distinct | 106 |
|---|---|
| Distinct (%) | 2.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 3.217754516 |
|---|---|
| Minimum | 2.72 |
| Maximum | 4.01 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 2.72 |
|---|---|
| 5-th percentile | 2.97 |
| Q1 | 3.11 |
| median | 3.2 |
| Q3 | 3.32 |
| 95-th percentile | 3.5 |
| Maximum | 4.01 |
| Range | 1.29 |
| Interquartile range (IQR) | 0.21 |
Descriptive statistics
| Standard deviation | 0.1604890355 |
|---|---|
| Coefficient of variation (CV) | 0.04987609675 |
| Kurtosis | 0.3759502829 |
| Mean | 3.217754516 |
| Median Absolute Deviation (MAD) | 0.1 |
| Skewness | 0.3838651215 |
| Sum | 15676.9 |
| Variance | 0.02575673053 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 3.16 | 157 | 3.2% | |
| 3.14 | 144 | 3.0% | |
| 3.18 | 136 | 2.8% | |
| 3.19 | 132 | 2.7% | |
| 3.15 | 131 | 2.7% | |
| 3.2 | 131 | 2.7% | |
| 3.22 | 130 | 2.7% | |
| 3.1 | 120 | 2.5% | |
| 3.26 | 117 | 2.4% | |
| 3.17 | 116 | 2.4% | |
| Other values (96) | 3558 | 73.0% |
| Value | Count | Frequency (%) | |
| 2.72 | 1 | < 0.1% | |
| 2.74 | 2 | < 0.1% | |
| 2.77 | 1 | < 0.1% | |
| 2.79 | 3 | 0.1% | |
| 2.8 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 4.01 | 1 | < 0.1% | |
| 3.9 | 2 | < 0.1% | |
| 3.85 | 1 | < 0.1% | |
| 3.81 | 1 | < 0.1% | |
| 3.8 | 1 | < 0.1% |
sulphates
Real number (ℝ≥0)
| Distinct | 107 |
|---|---|
| Distinct (%) | 2.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.5324753695 |
|---|---|
| Minimum | 0.22 |
| Maximum | 2 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 0.22 |
|---|---|
| 5-th percentile | 0.35 |
| Q1 | 0.43 |
| median | 0.51 |
| Q3 | 0.6 |
| 95-th percentile | 0.79 |
| Maximum | 2 |
| Range | 1.78 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1484505251 |
|---|---|
| Coefficient of variation (CV) | 0.2787932244 |
| Kurtosis | 8.668378876 |
| Mean | 0.5324753695 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.790216574 |
| Sum | 2594.22 |
| Variance | 0.02203755842 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 0.5 | 199 | 4.1% | |
| 0.54 | 181 | 3.7% | |
| 0.46 | 180 | 3.7% | |
| 0.44 | 169 | 3.5% | |
| 0.52 | 158 | 3.2% | |
| 0.38 | 156 | 3.2% | |
| 0.48 | 152 | 3.1% | |
| 0.47 | 149 | 3.1% | |
| 0.49 | 148 | 3.0% | |
| 0.53 | 146 | 3.0% | |
| Other values (97) | 3234 | 66.4% |
| Value | Count | Frequency (%) | |
| 0.22 | 1 | < 0.1% | |
| 0.23 | 1 | < 0.1% | |
| 0.25 | 3 | 0.1% | |
| 0.26 | 4 | 0.1% | |
| 0.27 | 9 | 0.2% |
| Value | Count | Frequency (%) | |
| 2 | 1 | < 0.1% | |
| 1.95 | 2 | < 0.1% | |
| 1.61 | 1 | < 0.1% | |
| 1.59 | 1 | < 0.1% | |
| 1.56 | 1 | < 0.1% |
alcohol
Real number (ℝ≥0)
| Distinct | 103 |
|---|---|
| Distinct (%) | 2.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 10.48427477 |
|---|---|
| Minimum | 8 |
| Maximum | 14.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 8 |
|---|---|
| 5-th percentile | 8.9 |
| Q1 | 9.5 |
| median | 10.3 |
| Q3 | 11.3 |
| 95-th percentile | 12.7 |
| Maximum | 14.9 |
| Range | 6.9 |
| Interquartile range (IQR) | 1.8 |
Descriptive statistics
| Standard deviation | 1.196296361 |
|---|---|
| Coefficient of variation (CV) | 0.1141038734 |
| Kurtosis | -0.5171509477 |
| Mean | 10.48427477 |
| Median Absolute Deviation (MAD) | 0.9 |
| Skewness | 0.5770674868 |
| Sum | 51079.38667 |
| Variance | 1.431124983 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 9.5 | 279 | 5.7% | |
| 9.4 | 260 | 5.3% | |
| 9.2 | 197 | 4.0% | |
| 10 | 178 | 3.7% | |
| 10.5 | 175 | 3.6% | |
| 9.8 | 162 | 3.3% | |
| 9 | 157 | 3.2% | |
| 11 | 157 | 3.2% | |
| 10.4 | 145 | 3.0% | |
| 9.6 | 144 | 3.0% | |
| Other values (93) | 3018 | 61.9% |
| Value | Count | Frequency (%) | |
| 8 | 2 | < 0.1% | |
| 8.4 | 5 | 0.1% | |
| 8.5 | 8 | 0.2% | |
| 8.6 | 21 | 0.4% | |
| 8.7 | 59 | 1.2% |
| Value | Count | Frequency (%) | |
| 14.9 | 1 | < 0.1% | |
| 14.2 | 1 | < 0.1% | |
| 14.05 | 1 | < 0.1% | |
| 14 | 9 | 0.2% | |
| 13.9 | 2 | < 0.1% |
quality
Real number (ℝ≥0)
| Distinct | 7 |
|---|---|
| Distinct (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.806034483 |
|---|---|
| Minimum | 3 |
| Maximum | 9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 38.1 KiB |
Quantile statistics
| Minimum | 3 |
|---|---|
| 5-th percentile | 5 |
| Q1 | 5 |
| median | 6 |
| Q3 | 6 |
| 95-th percentile | 7 |
| Maximum | 9 |
| Range | 6 |
| Interquartile range (IQR) | 1 |
Descriptive statistics
| Standard deviation | 0.8736314442 |
|---|---|
| Coefficient of variation (CV) | 0.1504695583 |
| Kurtosis | 0.2020304925 |
| Mean | 5.806034483 |
| Median Absolute Deviation (MAD) | 1 |
| Skewness | 0.1718342546 |
| Sum | 28287 |
| Variance | 0.7632319003 |
| Monotocity | Not monotonic |
| Value | Count | Frequency (%) | |
| 6 | 2099 | 43.1% | |
| 5 | 1630 | 33.5% | |
| 7 | 812 | 16.7% | |
| 4 | 168 | 3.4% | |
| 8 | 136 | 2.8% | |
| 3 | 24 | 0.5% | |
| 9 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 3 | 24 | 0.5% | |
| 4 | 168 | 3.4% | |
| 5 | 1630 | 33.5% | |
| 6 | 2099 | 43.1% | |
| 7 | 812 | 16.7% |
| Value | Count | Frequency (%) | |
| 9 | 3 | 0.1% | |
| 8 | 136 | 2.8% | |
| 7 | 812 | 16.7% | |
| 6 | 2099 | 43.1% | |
| 5 | 1630 | 33.5% |
quality_level
Categorical
| Distinct | 3 |
|---|---|
| Distinct (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 38.1 KiB |
| Good | |
|---|---|
| Excellent | |
| Bad | 192 |
| Value | Count | Frequency (%) | |
| Good | 3729 | 76.5% | |
| Excellent | 951 | 19.5% | |
| Bad | 192 | 3.9% |
Unique
| Unique | 0 ? |
|---|---|
| Unique (%) | 0.0% |
Length
| Max length | 9 |
|---|---|
| Median length | 4 |
| Mean length | 4.936576355 |
| Min length | 3 |
wine_type
Categorical
| Distinct | 2 |
|---|---|
| Distinct (%) | < 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 38.1 KiB |
| white | |
|---|---|
| red |
| Value | Count | Frequency (%) | |
| white | 3656 | 75.0% | |
| red | 1216 | 25.0% |
Unique
| Unique | 0 ? |
|---|---|
| Unique (%) | 0.0% |
Length
| Max length | 5 |
|---|---|
| Median length | 5 |
| Mean length | 4.500821018 |
| Min length | 3 |
Pearson's r
The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.
Spearman's ρ
The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.
Kendall's τ
Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.
Phik (φk)
Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.Cramér's V (φc)
Cramér's V is an association measure for nominal random variables. The coefficient ranges from 0 to 1, with 0 indicating independence and 1 indicating perfect association. The empirical estimators used for Cramér's V have been proved to be biased, even for large samples. We use a bias-corrected measure that has been proposed by Bergsma in 2013 that can be found here.First rows
| df_index | fixed_acidity | volatile_acidity | citric_acid | residual_sugar | chlorides | free_sulfur_dioxide | total_sulfur_dioxide | density | pH | sulphates | alcohol | quality | quality_level | wine_type | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 3372 | 5.6 | 0.15 | 0.26 | 5.55 | 0.051 | 51.0 | 139.0 | 0.99336 | 3.47 | 0.50 | 11.000000 | 6 | Good | white |
| 1 | 1094 | 7.4 | 0.24 | 0.31 | 8.40 | 0.045 | 52.0 | 183.0 | 0.99630 | 3.09 | 0.32 | 8.800000 | 5 | Good | white |
| 2 | 1514 | 6.9 | 0.84 | 0.21 | 4.10 | 0.074 | 16.0 | 65.0 | 0.99842 | 3.53 | 0.72 | 9.233333 | 6 | Good | red |
| 3 | 853 | 7.7 | 0.34 | 0.58 | 11.10 | 0.039 | 41.0 | 151.0 | 0.99780 | 3.06 | 0.49 | 8.600000 | 5 | Good | white |
| 4 | 3784 | 6.5 | 0.25 | 0.27 | 17.40 | 0.064 | 29.0 | 140.0 | 0.99776 | 3.20 | 0.49 | 10.100000 | 6 | Good | white |
| 5 | 3608 | 7.0 | 0.16 | 0.25 | 14.30 | 0.044 | 27.0 | 149.0 | 0.99800 | 2.91 | 0.46 | 9.200000 | 6 | Good | white |
| 6 | 22 | 7.9 | 0.43 | 0.21 | 1.60 | 0.106 | 10.0 | 37.0 | 0.99660 | 3.17 | 0.91 | 9.500000 | 5 | Good | red |
| 7 | 118 | 7.2 | 0.31 | 0.50 | 13.30 | 0.056 | 68.0 | 195.0 | 0.99820 | 3.01 | 0.47 | 9.200000 | 5 | Good | white |
| 8 | 1001 | 9.9 | 0.35 | 0.38 | 1.50 | 0.058 | 31.0 | 47.0 | 0.99676 | 3.26 | 0.82 | 10.600000 | 7 | Excellent | red |
| 9 | 3461 | 6.7 | 0.24 | 0.30 | 3.85 | 0.042 | 105.0 | 179.0 | 0.99189 | 3.04 | 0.59 | 11.300000 | 8 | Excellent | white |
Last rows
| df_index | fixed_acidity | volatile_acidity | citric_acid | residual_sugar | chlorides | free_sulfur_dioxide | total_sulfur_dioxide | density | pH | sulphates | alcohol | quality | quality_level | wine_type | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4862 | 959 | 8.0 | 0.590 | 0.05 | 2.0 | 0.089 | 12.0 | 32.0 | 0.99735 | 3.36 | 0.61 | 10.0 | 5 | Good | red |
| 4863 | 1593 | 8.6 | 0.160 | 0.49 | 7.3 | 0.043 | 9.0 | 63.0 | 0.99530 | 3.13 | 0.59 | 10.5 | 6 | Good | white |
| 4864 | 345 | 7.0 | 0.685 | 0.00 | 1.9 | 0.067 | 40.0 | 63.0 | 0.99790 | 3.60 | 0.81 | 9.9 | 5 | Good | red |
| 4865 | 1352 | 7.6 | 0.645 | 0.03 | 1.9 | 0.086 | 14.0 | 57.0 | 0.99690 | 3.37 | 0.46 | 10.3 | 5 | Good | red |
| 4866 | 964 | 8.5 | 0.470 | 0.27 | 1.9 | 0.058 | 18.0 | 38.0 | 0.99518 | 3.16 | 0.85 | 11.1 | 6 | Good | red |
| 4867 | 320 | 9.8 | 0.660 | 0.39 | 3.2 | 0.083 | 21.0 | 59.0 | 0.99890 | 3.37 | 0.71 | 11.5 | 7 | Excellent | red |
| 4868 | 4060 | 6.4 | 0.410 | 0.01 | 6.1 | 0.048 | 20.0 | 70.0 | 0.99362 | 3.19 | 0.42 | 10.0 | 5 | Good | white |
| 4869 | 1346 | 7.0 | 0.460 | 0.39 | 6.2 | 0.039 | 46.0 | 163.0 | 0.99280 | 3.21 | 0.35 | 12.2 | 7 | Excellent | white |
| 4870 | 3454 | 5.8 | 0.540 | 0.00 | 1.4 | 0.033 | 40.0 | 107.0 | 0.98918 | 3.26 | 0.35 | 12.4 | 5 | Good | white |
| 4871 | 3582 | 6.3 | 0.320 | 0.32 | 1.5 | 0.037 | 12.0 | 76.0 | 0.98993 | 3.30 | 0.46 | 12.3 | 6 | Good | white |